The release date according to the documentation is set for the fourth quarter of the year, with additional documentation detailing LTE support via software update in the fourth quarter of 2011, suggesting that the device will ship with LTE radio hardware at launch ahead of AT&T’s LTE network rollout.

Good one microsoft on forcing an internal memory card. It will make my decision a whole lot stronger on switching to android. Remember microsoft, you are NOT Apple.
Fix these issues or android and apple are going to continue getting more and more users.
As of now Anroid has won me over unless you bring back removal memory cards, multitasking and copy and paste.